Phone Comparison - Samsung I9100 Galaxy S II vs Samsung Galaxy Grand Duos I9082 vs HTC Rezound
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| Manufacturer | Samsung | Samsung | HTC |
| Announced | February 2011 | December 2012 | November 2011 |
| Status | Available - April 2011 | Available - January 2013 | Available - November 2011 |
| Colors | Black, White, Pink | Black, White | Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
125.3 x 66.1 x 8.5 mm (4.93 x 2.6 x 0.33 in) |
143.5 x 76.9 x 9.6 mm (5.65 x 3.03 x 0.38 in) |
129 x 65.5 x 13.7 mm (5.08 x 2.58 x 0.54 in) |
| Weight | 116 g (4.09 oz) | 162 g (5.71 oz) | 170.1 g (6.0.04 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | CDMA 800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 1900 / 2100 - SIM 1 only HSDPA 900 / 1900 / 2100 - SIM 1 only |
CDMA2000 1xEV-DO |
| 4G Network | - | - | LTE 700 |
| Messaging | SMS, MMS, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v2.3 (Gingerbread), planned upgrade to v4.0 | Android OS, v4.1.2 (Jelly Bean) | Android OS, v2.3.4 (Gingerbread), upgradable to v4.0 (Ice Cream Sandwich) |
| Processor | Dual-core 1.2GHz ARM Cortex-A9 processor, Exynos chipset | Dual-core 1.2 GHz Cortex-A9, Broadcom | Dual-core 1.5 GHz Scorpion, Qualcomm MSM8660 Snapdragon |
| GPU | Mali-400MP | Broadcom VideoCore IV | Adreno 220 |
| RAM | 1 GB | 1 GB | 1 GB |
| Internal Memory | 16 GB/32 GB storage | 8 GB | 16 GB storage |
| External Memory | microSD, up to 32GB, 8 GB included | microSD, up to 64 GB | microSD, up to 32 GB, 16 GB included |
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| Type | Super AMOLED Plus capacitive touchscreen | Capacitive touchscreen | S-LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.3 inches | 5.0 inches | 4.3 inches |
| Resolution | 480 x 800 pixels (217 ppi) | 480 x 800 pixels (187 ppi) | 720 x 1280 pixels (342 ppi) |
| Screen-to-Body Ratio | 63.52% | 64.20% | 60.16% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | Stereo FM radio with RDS | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 8 MP, 3264x2448 pixels | 8 MP, 3264x2448 pixels |
| Flash | LED flash | LED flash | dual-LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, Geo-tagging, Touch-focus, Image Stabilization, Face Detection, Instant Capture |
| Video | Yes, 1080p@30fps | Yes, 1080p@30fps | Yes, 1080p@30fps, 720p@60fps, stereo sound recording |
| Front Camera | Yes, 2 MP [Similar] | Yes, 2 MP [Similar] | Yes, 2 MP [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes | No |
| Edge | Class 12 | Yes | No |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | EV-DO Rev. A, up to 3.1 Mbps; LTE Class 13 |
| Bluetooth | Yes, v3.0+HS | Yes, v4.0 with A2DP, LE, EDR | Yes, v3.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, Wi-Fi hotspot |
| USB | Yes, v2.0 microUSB (MHL), USB On-the-go | Yes, microUSB v2.0 | Yes, microUSB v2.0 (MHL) |
| GPS | Yes, with A-GPS support | Yes, with A-GPS, support and GLONASS | Yes, with A-GPS support |
| Browser | HTML | HTML5 | HTML, Adobe Flash |
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| Internal | 16GB/32GB storage, 1 GB RAM | 8 GB, 1 GB RAM | 16 GB storage, 1 GB RAM |
| Expandable Storage | microSD, up to 32GB, 8 GB included | microSD, up to 64 GB | microSD, up to 32 GB, 16 GB included |
| USB OTG | Supported | - | - |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| NFC | |
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| Type | Standard battery, Li-Ion | Standard battery, Li-Ion | Li-Ion Battery |
| Capacity | 1650 mAh | 2100 mAh | 1620 mAh |
| Stand by | Up to 710 h (2G) Up to 610 h (3G) |
Up to 440 h | Up to 261 h |
| Talk Time | Up to 18 h 20 min (2G) Up to 8 h 40 min (3G) |
Up to 10 h 10 min | Up to 6 h 24 min |
